Projects
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Yoncalla Creek Mitigation Bank
Cascade is working with North Douglas Betterment (NDB), a local non-profit organization, to develop the Yoncalla Creek Mitigation Bank, restoring wetland conditions to portions of former log ponds MORE 
Cowlitz Estuary Restoration Feasibility Project
Cascade is assisting the Cowlitz Indian Tribe with restoration feasibility studies in the lower Columbia River estuary. We have conducted feasibility studies for a variety of estuary areas, ranging MORE 
Dahl Beach Mitigation Project
Gladstone, OR Cascade supported the Port of Portland in the development of the Dahl Beach Mitigation Project to offset impacts stemming from an early action contamination clean up, related to the Portland Harbor Superfund. MORE 
Wapato Valley Mitigation and Conservation Bank Wetland Support Wapato, WA Cascade is supporting the Wapato Valley Mitigation and Conservation Bank by providing wetland delineation, wetland functions assessment, and general project support to the bank sponsor. MORE 
Elk Creek Watershed Information Gap Assessment / Stream and Fish Surveys
Elk Creek, an important tributary to the Umpqua River, provides habitat for endangered coho salmon. Cascade is assisting the Elk Creek Watershed Council in assessing watershed conditions and prioritizing restoration projects. MORE 
Chehalis Basin Mitigation Bank
Hanaford Valley, Centralia, WA Cascade designed the Chehalis Basin Mitigation Bank to complement and provide additional lift to the adjacent Big Hanaford Creek Mitigation Site by restoring, rehabilitating, and enhancing riverine wetlands and floodplain function in the Hanaford Valley. MORE 
Mitchell Creek Mitigation Site
Centralia, WA The Cascade team designed a remediation plan for a mitigation project that was not performing as planned on Mitchell Creek in southwest Washington. Engineering and design staff retrofitted off-channel habitat alcoves, placed woody structures throughout the stream, and conducted vegetation management... MORE 
Greater Yamhill Watershed Council Action Plan
Yamhill County, OR The Action Plan provides a strategic framework and detailed roadmap to advance the Council’s mission to improve the health of the Yamhill River and its tributaries. The Council’s service area covers nearly 530,000 acres and is composed of 8 watersheds... MORE 
Rinearson Slough Restoration Feasibility Study
Rainier, OR Cascade conducted a study on the feasibility of salmon habitat restoration for an over 600-acre site along the lower Columbia River near Rainier, Oregon. The study evaluates the opportunity for floodplain reconnection and tidal channel habitat restoration... MORE 
Pacific Lamprey Migration Study
Willamette River Basin, OR To address questions about lamprey migration patterns and distribution, Cascade analyzed radio-telemetry data for Pacific lamprey (Entosphenus tridentatus) movement in the upper Wilamette Basin over a five-year period, from 2008 to 2012. MORE |
Fernhill NTS Wetlands Vegetation and Biodiversity Analyses
Cascade is assisting Clean Water Services in setting up a long-term monitoring framework at the Fernhill Wetlands to determine if the site’s ecological goals are being met. MORE 
Shoalwater Bay Mitigation Bank
Tokeland, WA Cascade is developing an estuarine mitigation bank for the Shoalwater Bay Indian Tribe, in Tokeland Washington. The mitigation bank will include breaching of privately owned levees on land to be held in trust by the Tribe. MORE 
Big Hanaford Creek
Monitoring and Management Centralia, WA Cascade provides mitigation site permit compliance monitoring and manages site maintenance for two large mitigation projects in Centralia, WA. The two sites total 149 acres of mitigation area,... MORE 
Gallagher Creek Mitigation Site
Centralia, WA Cascade developed a 118-acre mitigation site in the Newaukum River Basin. The final mitigation plan received approval from the U.S. Army Corps of Engineers and Washington State Department of Ecology. MORE 
Pine Hollow-Jackknife Creek Watershed Assessment
Sherman County, OR Cascade assisted the Sherman County Soil and Water Conservation District with the completion of an assessment of Pine Hollow and Jackknife Creeks, a nearly 150,000 acre watershed draining to the lower John Day River in north-central Oregon. MORE 
Water Environment Services
Property Screening Tool Clackamas County, OR Cascade partnered with Mead & Hunt to assist the Clackamas County Water Environment Services in a feasibility analysis of several sites being considered for wetland mitigation banking and stormwater management facilities. MORE 
Rinearson Natural Area Restoration
Clackamas County, OR Cascade developed the engineering design for dam removal and channel enhancements as well as producing a floodplain vegetation planting and management plan, including construction documents. MORE 
Wetland Delineations
OR and WA Cascade provides project support to Adapt Engineering for various development projects. We provide wetland delineation, Critical Areas Ordinance permitting and mitigation, and federal and state aquatic resource permitting. MORE |
Newell Creek Canyon
Cascade is supporting Metro in the development of a trail network and day-use area within Newell Creek Canyon located in Clackamas County. The Access Master Plan includes hiking, off-road cycling, and multi-use trails with bridges, scenic overlooks, picnic areas, restrooms, and parking. MORE 
Wallooskee Youngs
Restoration Project Astoria, OR Cascade partnered with the Cowlitz Indian Tribe to develop a large-scale tidal wetland restoration project that created nearly 200 acres of estuarine salmon rearing habitat in the Lower Columbia River.... MORE 
Hopkins Forest Wetland Restoration
Oregon City, OR Cascade designed a wetland habitat restoration project at the Hopkins Demonstration Forest. The project restored the 0.45-acre site to a high-functioning wetland, creating habitat for amphibians and other wetland-related species. MORE 
Mt Pisgah Viewshed Analysis
Wheeler County, OR We perform GIS-based viewshed analyses to determine visibility of proposed structures from key vantage points. The results are delivered as “visible areas” feature classes and are modeled within a 3-D software platform... MORE 
Garret Creek Mitigation Bank
Molalla, OR Cascade staff developed the Garret Creek Mitigation Bank in Molalla, Oregon. This bank was approved in 2008 as the only mitigation bank in the Pacific Northwest with CWA Section 404/401–approved stream credits. MORE |